This study evaluated the polyphenol profile and the antioxidative properties of Plinia trunciflora (O. Berg) Kausel fruits. Folin-Ciocalteau and pH-jumping methods indicated that these berries are a major source of antioxidant polyphenols (1201.05 mg GAE/100 g FW), particularly anthocyanins. HPLC-DAD-ESI-MS/MS analysis identified cyanidine glycosides as the main components. Flavon-3-ols and hydrolysable-tannins were also found. CAA assay showed that extracts of P. trunciflora fruits prevent lipid peroxidation in HepG2 cells with higher efficacy than other colourful fruits (CAA50 935.25 mg FW/mL cell medium). Moreover, our results suggested that the observed antioxidant protection involve both redox active properties of P. trunciflora components, as measured by ABTS, DPPH and FRAP assays, and upregulation of the genes coding for the antioxidant enzymes MnSOD and GPx, as evaluated by qRT-PCR. Collectively, our data provided evidence on the potential of P. trunciflora fruit as a very rich source of natural antioxidant molecules.

Phytochemical profile and antioxidative properties of Plinia trunciflora fruits: A new source of nutraceuticals

Mannino G.;Campobenedetto C.;Margherita Bertea C.;
2020-01-01

Abstract

This study evaluated the polyphenol profile and the antioxidative properties of Plinia trunciflora (O. Berg) Kausel fruits. Folin-Ciocalteau and pH-jumping methods indicated that these berries are a major source of antioxidant polyphenols (1201.05 mg GAE/100 g FW), particularly anthocyanins. HPLC-DAD-ESI-MS/MS analysis identified cyanidine glycosides as the main components. Flavon-3-ols and hydrolysable-tannins were also found. CAA assay showed that extracts of P. trunciflora fruits prevent lipid peroxidation in HepG2 cells with higher efficacy than other colourful fruits (CAA50 935.25 mg FW/mL cell medium). Moreover, our results suggested that the observed antioxidant protection involve both redox active properties of P. trunciflora components, as measured by ABTS, DPPH and FRAP assays, and upregulation of the genes coding for the antioxidant enzymes MnSOD and GPx, as evaluated by qRT-PCR. Collectively, our data provided evidence on the potential of P. trunciflora fruit as a very rich source of natural antioxidant molecules.
2020
307
125515
125522
www.elsevier.com/locate/foodchem
Anthocyanins; Antioxidant enzymes; Cellular antioxidant activity (CAA); Jaboticaba; Myrciaria trunciflora; Antioxidants; Chromatography, High Pressure Liquid; Dietary Supplements; Fruit; Glutathione Peroxidase; Hep G2 Cells; Humans; Lipid Peroxidation; Myrtaceae; Phytochemicals; Plant Extracts; Polyphenols; Superoxide Dismutase; Tandem Mass Spectrometry; Up-Regulation
Mannino G.; Perrone A.; Campobenedetto C.; Schittone A.; Margherita Bertea C.; Gentile C.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1729466
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